Research types

Primary research- research that is done through observation exp.survey.
Secondary research-  gathering existing information for exp. existing surveys.
Quantitative research- this research is about quantity and is linked to anything that can be broken down into numbers.
Qualitative research- research which concerns people's opinions etc. in order for the industry to use their opinions to their advantage.

How to google like a pro:
in order to get precise legitimate information on the specific to the search by using Google Scholar or looking at websites which end in ac, gov etc. is liable information that is more suitable to your search.